WMSIC Electronic Components

YJYCOIN YNR8040-471M YNR8040

ModelYNR8040-471M
PackageSMD,8x8mm
BrandYJYCOIN
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
YJYCOIN YNR8040-471M
Type
YJYCOIN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJYCOIN
Electronic Component
YNR8040-471M
Electronic Component
1
Package
SMD,8x8mm
Type
Magnetic Display Inductor
Electronic Component
Power Inductor
Electronic Component
±20%
Electronic Component
1.16g
Inductor
470uH
Electronic Component
1
Electronic Component
BM0265872484
Current
500mA
Resistor(DCR)
1.26Ω
Electronic Component
Electronic Component
Electronic Component
1000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

YNR8040-471M功率电感产品概述

一、产品基本定位与标识

YNR8040-471M是YJYCOIN(益嘉源) 推出的磁胶屏蔽功率电感,属于小功率贴片电感系列。型号中:

  • YNR为品牌系列代码;
  • 8040对应封装尺寸(长×宽×高:8×8×4.2mm);
  • 471表示电感值(47×10¹=470uH);
  • M代表精度±20%。

该产品采用SMD贴片封装,适配自动化SMT生产,是紧凑电路设计中平衡性能、成本与EMI控制的优选方案。

二、核心电气参数解析

1. 电感值与精度

电感标称值为470uH,精度±20%,实际值范围为376uH~564uH,满足一般小功率储能、滤波场景的需求(无需高精度谐振电路的场合)。

2. 额定电流

连续工作额定电流为500mA,指环境温度25℃时,电感允许温升(通常≤40℃)范围内的最大连续负载电流。若电流超过此值,线圈铜损(I²R)会导致过热,可能引发电感值漂移或磁芯损坏。

3. 直流电阻(DCR)

线圈直流电阻为1.26Ω,直接影响铜损:当负载电流为500mA时,铜损约为0.5²×1.26=0.315W,需在PCB设计中预留适当散热空间(如加宽焊盘、增加铜箔面积)。

4. 屏蔽特性

采用磁胶屏蔽结构,相比非屏蔽电感,可降低80%以上的电磁辐射(EMI),减少对周边敏感电路(如射频模块、传感器)的干扰,适合对EMI要求严格的应用。

三、封装与结构特性

1. 封装尺寸

SMD封装规格为8×8×4.2mm(长×宽×高),属于小型化贴片电感,可有效节省PCB空间,适配便携设备、IoT节点等紧凑设计。

2. 结构优势

  • 磁胶磁芯:兼顾电感性能与屏蔽效果,耐振动、抗冲击能力优于传统铁粉芯,适合车载、工业控制等可靠性要求高的场景;
  • 高导电铜线:线圈采用低电阻铜线绕制,降低DCR损耗,提升效率;
  • 贴片焊盘:标准QFN-like焊盘设计,兼容主流贴片机,焊接可靠性高。

四、典型应用场景

该电感因小电流、低EMI、紧凑封装的特点,广泛应用于:

  1. 小功率DC-DC转换:手机、平板、智能穿戴的充电管理模块、电源适配器次级滤波;
  2. LED驱动电路:低功率LED灯串(台灯、小夜灯)的恒流/恒压驱动储能;
  3. IoT设备电源:传感器节点、低功耗无线模块(蓝牙、ZigBee)的电源管理;
  4. 汽车电子辅助电路:车内传感器(温度/湿度)供电、小功率控制器滤波;
  5. 消费电子配件:充电宝、蓝牙音箱的电源转换电路。

五、选型与使用注意事项

  1. 电流匹配:负载连续电流≤500mA,脉冲电流需参考厂商峰值电流(通常为额定电流1.5~2倍,需确认具体参数);
  2. 精度适配:±20%精度不适合谐振电路(如无线充电),需选±10%(K级)或更高精度型号;
  3. 散热设计:PCB焊盘需加宽至1.2~1.5mm,若应用于高温环境(如车载),需评估降额使用;
  4. 焊接工艺:回流焊峰值温度≤260℃(时间≤10秒),避免热风直吹磁芯导致性能下降;
  5. 环境温度:常规工作温度为-40℃~+85℃,极端低温(<-40℃)需确认厂商低温可靠性数据。

六、产品优势总结

YNR8040-471M以高性价比为核心,兼具:

  • 磁胶屏蔽降低EMI;
  • 紧凑封装节省空间;
  • 稳定的小功率性能适配主流应用;
  • 兼容自动化生产提升效率。

是消费电子、IoT及汽车电子辅助电路中,平衡性能与成本的实用型功率电感方案。

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